<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Application
 * @subpackage Resource
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Translate.php 23775 2011-03-01 17:25:24Z ralph $
 */

/**
 * @see Zend_Application_Resource_ResourceAbstract
 */
require_once 'Zend/Application/Resource/ResourceAbstract.php';

/**
 * Resource for setting translation options
 *
 * @uses       Zend_Application_Resource_ResourceAbstract
 * @category   Zend
 * @package    Zend_Application
 * @subpackage Resource
 * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Application_Resource_Translate extends Zend_Application_Resource_ResourceAbstract {
	const DEFAULT_REGISTRY_KEY = 'Zend_Translate';
	
	/**
	 * @var Zend_Translate
	 */
	protected $_translate;
	
	/**
	 * Defined by Zend_Application_Resource_Resource
	 *
	 * @return Zend_Translate
	 */
	public function init() {
		return $this->getTranslate ();
	}
	
	/**
	 * Retrieve translate object
	 *
	 * @return Zend_Translate
	 * @throws Zend_Application_Resource_Exception if registry key was used
	 * already but is no instance of Zend_Translate
	 */
	public function getTranslate() {
		if (null === $this->_translate) {
			$options = $this->getOptions ();
			
			if (! isset ( $options ['content'] ) && ! isset ( $options ['data'] )) {
				require_once 'Zend/Application/Resource/Exception.php';
				throw new Zend_Application_Resource_Exception ( 'No translation source data provided.' );
			} else if (array_key_exists ( 'content', $options ) && array_key_exists ( 'data', $options )) {
				require_once 'Zend/Application/Resource/Exception.php';
				throw new Zend_Application_Resource_Exception ( 'Conflict on translation source data: choose only one key between content and data.' );
			}
			
			if (empty ( $options ['adapter'] )) {
				$options ['adapter'] = Zend_Translate::AN_ARRAY;
			}
			
			if (! empty ( $options ['data'] )) {
				$options ['content'] = $options ['data'];
				unset ( $options ['data'] );
			}
			
			if (isset ( $options ['options'] )) {
				foreach ( $options ['options'] as $key => $value ) {
					$options [$key] = $value;
				}
			}
			
			if (! empty ( $options ['cache'] ) && is_string ( $options ['cache'] )) {
				$bootstrap = $this->getBootstrap ();
				if ($bootstrap instanceof Zend_Application_Bootstrap_ResourceBootstrapper && $bootstrap->hasPluginResource ( 'CacheManager' )) {
					$cacheManager = $bootstrap->bootstrap ( 'CacheManager' )->getResource ( 'CacheManager' );
					if (null !== $cacheManager && $cacheManager->hasCache ( $options ['cache'] )) {
						$options ['cache'] = $cacheManager->getCache ( $options ['cache'] );
					}
				}
			}
			
			$key = (isset ( $options ['registry_key'] ) && ! is_numeric ( $options ['registry_key'] )) ? $options ['registry_key'] : self::DEFAULT_REGISTRY_KEY;
			unset ( $options ['registry_key'] );
			
			if (Zend_Registry::isRegistered ( $key )) {
				$translate = Zend_Registry::get ( $key );
				if (! $translate instanceof Zend_Translate) {
					require_once 'Zend/Application/Resource/Exception.php';
					throw new Zend_Application_Resource_Exception ( $key . ' already registered in registry but is ' . 'no instance of Zend_Translate' );
				}
				
				$translate->addTranslation ( $options );
				$this->_translate = $translate;
			} else {
				$this->_translate = new Zend_Translate ( $options );
				Zend_Registry::set ( $key, $this->_translate );
			}
		}
		
		return $this->_translate;
	}
}
